Physics

Problem

Which one of the following expresses the fringe width

\beta

in Young’s double-slit experiment in terms of wavelength

\lambda

, slit separation

d

, and distance to the screen

D

? a)

\beta = \dfrac{dD}{\lambda}

\beta = \dfrac{2\lambda D}{d}

\beta = \dfrac{\lambda D}{d}

\beta = \dfrac{\lambda d}{D}